_strnextc, _wcsnextc, _mbsnextc, _mbsnextc_l

Finds the next character in a string.

Syntax

unsigned int _strnextc(
   const char *str
);
unsigned int _wcsnextc(
   const wchar_t *str
);
unsigned int _mbsnextc(
   const unsigned char *str
);
unsigned int _mbsnextc_l(
   const unsigned char *str,
   _locale_t locale
);

Parameters

str
Source string.

locale
Locale to use.

Return value

Each of these functions returns the integer value of the next character in str.

Remarks

The _mbsnextc function returns the integer value of the next multibyte character in str, without advancing the string pointer. _mbsnextc recognizes multibyte-character sequences according to the multibyte code page currently in use.

If str is NULL, the invalid parameter handler is invoked, as described in Parameter validation. If execution is allowed to continue, errno is set to EINVAL and the function returns 0.

Security Note This API incurs a potential threat brought about by a buffer overrun problem. Buffer overrun problems are a frequent method of system attack, resulting in an unwarranted elevation of privilege. For more information, see Avoiding buffer overruns.

By default, this function's global state is scoped to the application. To change this behavior, see Global state in the CRT.

Generic-text routine mappings

_strnextc and _wcsnextc are single-byte-character string and wide-character string versions of _mbsnextc. _wcsnextc returns the integer value of the next wide character in str; _strnextc returns the integer value of the next single-byte character in str. _strnextc and _wcsnextc are provided only for this mapping and shouldn't be used otherwise. For more information, see Using generic-text mappings and Generic-text mappings.

_mbsnextc_l is identical except that it uses the locale parameter passed in instead. For more information, see Locale.

Requirements

For more compatibility information, see Compatibility.

See also

String manipulation
Locale
Interpretation of multibyte-character sequences
_strdec, _wcsdec, _mbsdec, _mbsdec_l
_strinc, _wcsinc, _mbsinc, _mbsinc_l
_strninc, _wcsninc, _mbsninc, _mbsninc_l